Female Cat Urinating problems

Question
My 9mo. old female kitty as not urinated in a couple days, although she has defecated. Her stomach is hard, and doen't seem to be in pain. She is acting like her normal self; playing, drinking water, and eating. Is there any home remedies to treat an UTI?? About how much would it cost to treat this at the vet's office?

Answer
While not impossible, it seems unlikely that your cat is defecating normally and not urinating. A cat that can't urinate for two days won't be eating, or playing either
If her stomach is that hard she would also be very uncomfortable. She may be wetting someplace other than her litter box.
If you are sure she isn't urinating then you need to get her into the vets.
I can't give you a cost figure because every vet office on earth charges a different price for services depending what country they are in and what town/state/city.
But I would call the vet's and ask.
Either way, look around the house first, check the plants if you have any and the rugs.
Then if you don't find a wet spot somewhere, call the vet's.